Access jwjy.com. 减温器-减温减压器-减温减压装置-杭州三联电站辅机有限公司

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value16.2 s

0/100

10%

TBT (Total Blocking Time)

Value2,550 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.811

4/100

15%

TTI (Time to Interactive)

Value13.0 s

12/100

10%

jwjy.com

2046 ms

css.css

653 ms

1_01.jpg

459 ms

1_02.jpg

458 ms

global.css

900 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 84% of them (54 requests) were addressed to the original Jwjy.com, 16% (10 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Jwjy.com.

Content Size

851.7 kB

After Optimization

702.6 kB

In fact, the total size of Jwjy.com main page is 851.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 621.9 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 41.2 kB

Original 46.2 kB
After minification 31.7 kB
After compression 4.9 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 14.4 kB, which is 31% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 41.2 kB or 89% of the original size.

Image Optimization

-2%

Potential reduce by 12.2 kB

Original 621.9 kB
After minification 609.6 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Jwjy images are well optimized though.

JavaScript Optimization

-40%

Potential reduce by 49.9 kB

Original 126.1 kB
After minification 120.5 kB
After compression 76.2 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 49.9 kB or 40% of the original size.

CSS Optimization

-79%

Potential reduce by 45.8 kB

Original 57.6 kB
After minification 52.6 kB
After compression 11.9 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Jwjy.com needs all CSS files to be minified and compressed as it can save up to 45.8 kB or 79% of the original size.

Requests Now

After Optimization

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jwjy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

ZH
Language Claimed

N/A
Encoding

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jwjy.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Jwjy.com main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

jwjy.com

Open Graph description is not detected on the main page of Jwjy. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks:

Report Summary

Performance

Accessibility

Best Practices

SEO

减温器-减温减压器-减温减压装置-杭州三联电站辅机有限公司

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

jwjy.com

css.css

1_01.jpg

1_02.jpg

global.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

jwjy.com

css.css

1_01.jpg

1_02.jpg

global.css

layout.css

page.css

style.css

jQuery.js

jquery.easing.1.3.js

comon.js

index.css

i_ban.js

jquery.imgScroll.js

1_04.jpg

1_05.jpg

1_06.jpg

1_07.jpg

1_08.jpg

1_09.jpg

1_11.jpg

1_12.jpg

bg.jpg

1_03.jpg

1_10.jpg

1_14.jpg

1_16.jpg

1_17.jpg

20_20151151671272116.png

19_2015115165293149.png

15_201511515544475213.png

14_201511515504594248.png

10_20151151536867671.png

9_201511515313546012.png

8_201511514544680439.png

7_201511514524154852.png

_201511514503816857.png

1_19.jpg

1_21.jpg

1_23.jpg

i_ban.jpg

a1.jpg

A2.jpg